Ngwakọta Dopant Compiund Series

Njirimara anụ ahụ na kemịkal:

Yttrium iron garnet (YIG) bụ garnet sịntetik nwere ihe mejupụtara kemịkalụ Y3Fe2(FeO4)3, ma ọ bụ Y3Fe5O12. Ọ bụ ihe ferrimagnetic nke nwere okpomọkụ Curie nke 560 K. YIG nwekwara ike mara dị ka yttrium iron garnet, ma ọ bụ yttrium iron oxide ma ọ bụ yttrium iron oxide, aha abụọ ikpeazụ na-ejikọta ya na ụdị ntụ ntụ.

Na YIG, ion ígwè ise (III) nwere octahedral abụọ na saịtị tetrahedral atọ, na ion yttrium (III) na-ejikọta ya na ion oxygen asatọ na cubes oge. Ions ígwè dị na saịtị nhazi abụọ ahụ na-egosipụta ntụgharị dị iche iche, na-eduga n'omume magnetik. Dịka ọmụmaatụ, site na iji ihe ndị na-adịghị ahụkebe nke ụwa dochie ọnọdụ ụfọdụ, enwere ike nweta ihe ndọta na-adọrọ mmasị.

ngwa:

YIG nwere nnukwu Verdet dị elu na-eduga na mmetụta Faraday, ihe dị elu Q na-eme ugboro ugboro na ngwa ndakwa nri, nnabata dị ala na ebili mmiri infrared gbadara 1200 nm, yana obere ahịrị dị ntakịrị maka resonance eletrọn. Ngwongwo ndị a na-eme ka ha baa uru maka ngwa MOI (magneto-optical imaging) na superconductors.

A na-eji YIG na ngwa ngwa ngwa ndakwa nri, ihe nkiri, ngwa anya na ngwa magneto-optical, dị ka ihe nzacha microwave YIG, ma ọ bụ ndị na-ebugharị ụda na transducers. Ọ na-egosipụta ìhè na ogologo wavelength dị elu karịa 600 nm (njedebe infrared nke ụdịdị dị iche iche). Enwere ike iji ya na lasers steeti siri ike na Faraday rotators, nchekwa data na ngwa ngwa anya dị iche iche na-abụghị nke ntanetị.